Fuel mixer for internal-combustion engines



Nov. 2a, 1923 "1,4?4391 A. ROGERS FUEL MIXER FOR INTERNAL COMBUSTION ENGINES Filed July 10 1322 4 x0- nil. 5-- n Patented Nov. .10, 1923.

' um'raosrarss 1,474,791 PATENT orriciz.

ABBY ROGERS, Oil SEATTLE, WASHINGEON ASSIGNOR T MARTIN NASH AND W. G. v EUTCHIHS, BOTH OF SEATTLE, WASHINGTON.

FUEL HIXER FOB INTERNAL-COMBUSTION ENGINES.

Application filed July 10, 1822. Serial No. 573,943.

To all whom it may concern:

Be it known that I, ABBY Roosns, a citizen of the United States, residing at Seattle, in the county of King a nd State of Washington, have invented a newand useful Fuel Mixer for Internal-Combustion Engines, of which the following is a specification.

My invention relates to improvements in fuel mixers for internal combustion engines, such as those used inautomobiles and motor boats, and the primary object of'my invention is to provide a fuel mixer, adapted for installation at the entrance of the intake manifold, whereby acertain percentage of moist air or steam is drawn, through pipe connection from apoint slightly above the overflow pipe in the top tank of the cooling system, by suction on the inlet stroke and directed'against a rotary element where it is mixed with the fuel charge in its passage from the carburetor to the cylinders of said 'engines. I y

Another object is to provide a the] mixer having a rotary element desi ed to facili- 1 tate its rotary motionby uti izing its centrifugal properties, and planned to increase its-mixing capacity by reason of the peculiar-shape of its b ades.

'. A further object is'to provide a fuel mixer having a base member with a convergent aperture therein and a projecting arm forming a central bearing for a spindle on which the rotary element is mounted whereh y' said rotary element is offset from the plane of said base member in such osition" -as to be actuated by the concentrate forces of the fuel mixture after passing through said convergent aperture. ,Other objects are to provide a fuel mixer which simple and durable in construction, direct andf-efiicient in operation, that can be manufactured at comparatively small cost, and which may be readily installed on all engines of standard design.

With the above and other objects in view which will'Fappehr as the description pro reeds, the invention consists of the novel construction, adaptation, arrangement and combination of parts hereinafter descr bed and claimed. i

These objects are accomplished b devices illustrated in the accompanying (rawings, wherein- T E Figure 1. is a view in Side elevation of an and showing the rotary element and associated parts in elevation;

Fig. 4 1S :1 view; -in vertical section taken on a broken line 4--4 of Fig.2; and

Fig. 5 is a detail view in pierspective ofthe rotary element together wi in" fingered washers.

lieferring to the drawings, throughout which like. reference numerals designate like parts, the numeral 5 designates the top tank of an automobile cooling system having an overflow pipe 6 extending upwardly therein. The numeral 7 designates a flanged portion of a carburetor 8, while thenumeral ,9 designates a corresponding flanged portion of the intake manifold 10. Interdisposed with relation to the flanged portions 7. and 9 and held in abutment therebetween by .bolts 11 is a base member 12 of the mixer proper which corresponds in exterior contour with said flan ed Said base member is provided .wit a com trally located aperture 13 having a beveled wall 14 which converges in a direction away from the interiorwall of the carburetor flanged portion'Z for reasons presently de scribed.

Integrally formed with the base member 12'is an arm 15 which projects within the its accompanyaperture 13 and is slightly offset from the- P ane thereof as clearly shown in Figs. 2,6 and; of the drawings.v Said arm centrally terminates in a bearing 16 having a threaded -opening and the reduced end portion of a spindle l7 is-screwed therein. Said spindle is rovided at its outer end with, a headgl8;

orresponc ing washers 19 are lac'edon the body portion of the spindle 1 against the bearing 16 and ,head 18 respectively,

while corresponding fingered washers 20, hearing against the washers 19, provide a central space on the body portion where a rotary-.elementv21 encircles said spindle.

Referring more particularly to Figs. 2 and ,5 of the drawings, it will be noted that the blades 22 of the rotary element 21 are separated from each other by substantially circular spaces forming opposite points 23 on ortionsr:

. said blades and giving them relatively wide palms 24 as compared with their shanks 25.- It will also be seen that the two diametris cally opposite fingers 26 on each of the washers 20 are arranged to fit over the inner edges formed by said spaces which will cause said washers to revolve with said rotary element.

For the purpose of supplying moist air or steam to the device, a small pipe 27'is tapped into the top tank 5 of the radiator and is jointed at 28 so the mixer may be removed without breaking the connection with said radiator. The upper end of said pipe extends slightly above the top tank overflow pipe 6 so that water from said top tank will not flood same. The lower end portion of said pipe enters through an opening '29 formed in the 'base member, 12, whence it is directed toward the bearing 16 of the arm 15 as clearly shown in 2 and 4.

It will be obvious that the motive power which actuates theidevice is furnished by the suction of thecylinders on the intake stroke. The fuel charge is drawn from the carburetor- 8 and in its passage through the aperture 13 is directed by the beveled wall 14 toward the rotary element 21. At the same vtime a certain, ercentage of moist air or steam is drawn om the tank 5 through the pipe 27 and against the bearing 16 where it is more-or less broken up and mingled with said fuel charge.

The blades 22 of the rotary element 2],

are twisted screw fashion similar to the or- .dinary propeller blade,

and, in employim the peculiar shape as hereinbefore describe advancing against the fuel and moist air, the mixing and thrown outwardly against the interior walls of the intake manifold 10. In other words, the charge is mixed by the peculiar shaped blades before it is driven therefrom as is the case with the blade of ordinary design. 7

The advantages of the blades 22 as herein described are likewise manifest in the fact that the greater .weight being distributed near the peripheries thereof, the resultant b momenta, assisted by the-small amount of lubricant always present in the gaseous va por, will keep the .rotary element revolving,

' it has been found that the sharp points 23,

without apparent retardation, even**during the power, exhaust and compression strokes, and the relatively wide palms 24 of said blades will continue throwing the fuel mixture outwardly a instthe warm interior walls of the manifold 10 condensation prior to entr into the combustion cham rs. In the use of my device, distribution'of fuel is furnished to all cylinders at the same time, that the consumption of fuel is materially-reduced, and that the formation of hard carbon is prevented which fact is apparently due to molecular agitation in cooperation with the mixture of aqueous and gaseous vapor.

Having thus described my invention what I claim and desire to secure by Letters Patent is LA fuel mixer for-internal combustion engines comprising an apertured base member, an arm extending into the aperture formed in' saidbuse, said arm being offset from the plane df said baseand terminating in .a central bearing, a spindle positioned in said bearin projecting in a direction with the ofi'set't erefrom, a rotary element provided with radial blades adapted to rotate on said spindle, said aperture in said base member being tapered in such manner that its walls convergesubstantially in alignment'with the outer periphery of said rothus minimizingof said mixture I have found, that a more even.

tary element, and means for retaining said rotary. element on said spindle.

engines comprising an apertured base member, an arm. extending into the aperture formed in said base, said arm being offset from the plane of said base and terminating in a central bearing, a spindle positioned in said bearing projectmgin a direction with the offset therefrom, a rotary element proaided with radial blades adapted to rotate on said spindle, said blades having-substantially circular s aces therebetween'"forming wide palms witii concave edges, saidn aperture in said base member being taperd in such manner that its walls stantially in alignment with ripheries of said blades,

converge subthe outer pemeans entering said ase member for conveying vapor to sa d rotary element, and means for retaining said rotary element on said s indle.- i

A BY ROGERS. 

